20001100223 has 8 divisors (see below), whose sum is σ = 21542734416. Its totient is φ = 18459907200.

The previous prime is 20001100199. The next prime is 20001100237. The reversal of 20001100223 is 32200110002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20001100223 - 2²⁰ = 20000051647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001100283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12938 + ... + 200423.

It is an arithmetic number, because the mean of its divisors is an integer number (2692841802).

Almost surely, 2^20001100223 is an apocalyptic number.

20001100223 is a deficient number, since it is larger than the sum of its proper divisors (1541634193).

20001100223 is a wasteful number, since it uses less digits than its factorization.

20001100223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220585.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20001100223 its reverse (32200110002), we get a palindrome (52201210225).

The spelling of 20001100223 in words is "twenty billion, one million, one hundred thousand, two hundred twenty-three".